<template>
  <view class="uni-table-tr">
    <checkbox-group
      v-if="selection === 'selection'"
      class="checkbox"
      :class="{ 'tr-table--border': border }"
      @change="change"
    >
      <label>
        <checkbox value="check" :checked="value" />
      </label>
    </checkbox-group>
    <slot></slot>
  </view>
</template>

<script>
/**
 * Tr 表格行组件
 * @description 表格行组件 仅包含 th,td 组件
 * @tutorial https://ext.dcloud.net.cn/plugin?id=
 */
export default {
  name: 'uniTr',
  options: {
    virtualHost: true,
  },
  data() {
    return {
      value: false,
      border: false,
      selection: false,
      widthThArr: [],
    }
  },
  created() {
    this.root = this.getTable()
    this.border = this.root.border
    this.selection = this.root.type
    this.root.trChildren.push(this)
    this.root.isNodata()
  },
  mounted() {
    if (this.widthThArr.length > 0) {
      const selectionWidth = this.selection === 'selection' ? 50 : 0
      this.root.minWidth =
        this.widthThArr.reduce((a, b) => Number(a) + Number(b)) + selectionWidth
    }
  },
  destroyed() {
    const index = this.root.trChildren.findIndex((i) => i === this)
    this.root.trChildren.splice(index, 1)
    this.root.isNodata()
  },
  methods: {
    minWidthUpdate(width) {
      this.widthThArr.push(width)
    },
    change(e) {
      this.root.trChildren.forEach((item) => {
        if (item === this) {
          this.root.check(this, e.detail.value.length > 0 ? true : false)
        }
      })
    },
    /**
     * 获取父元素实例
     */
    getTable() {
      let parent = this.$parent
      let parentName = parent.$options.name
      while (parentName !== 'uniTable') {
        parent = parent.$parent
        if (!parent) return false
        parentName = parent.$options.name
      }
      return parent
    },
  },
}
</script>

<style lang="scss">
.uni-table-tr {
  display: table-row;
  transition: all 0.3s;
  box-sizing: border-box;
}

.checkbox {
  padding: 12px 8px;
  width: 26px;
  padding-left: 12px;
  display: table-cell;
  // text-align: center;
  vertical-align: middle;
  color: #333;
  font-weight: 500;
  border-bottom: 1px #ddd solid;
  font-size: 14px;
}

.tr-table--border {
  border-right: 1px #ddd solid;
}

.uni-table-tr {
  ::v-deep .uni-table-th {
    &.table--border:last-child {
      border-right: none;
    }
  }
  ::v-deep .uni-table-td {
    &.table--border:last-child {
      border-right: none;
    }
  }
}
</style>
